Under the iTunes in the Cloud section, click Manage Devices. (If you haven't associated any devices with your Apple ID, you won't see the Manage Devices section.) Information about each associated device appears. Next to each device, you can see when it associated with your Apple ID.
The real reason why the burp smells so badly is hydrogen sulfide (H2S). If you eat foods that have sulfur proteins in them then you may find yourself burping the H2S, which will smell like rotten eggs. The sulfur reducing microbes in the intestine digest the proteins and release the gas.
There are two main causes of belching and burping: Eating or drinking too quickly can cause you to swallow too much air. Belching or burping is the bodyâs way of releasing that excess air. Sucking on sweets, drinking through straws, chewing gum and wearing loose dentures may all trigger swallowing of excess air. Belching is common in people with heartburn or acid reflux.